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64results about How to "Prevent spread of pollution" patented technology
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Method for accurately positioning soil contamination based on geophysical exploration and accurate estimation method
ActiveCN107544097APrecise positioningArrange sampling points reasonablyGeological measurementsHigh densitySoil science
The invention discloses a method for accurately positioning soil contamination based on geophysical exploration and an accurate estimation method. The method for accurately positioning soil contamination includes the following steps: on-site surveying, rapid exploration which covers entire site from the width perspective, further contamination body and availability positioning from the depth perspective, drilling sampling and analysis verification from specific point perspective, and accurate contamination level evaluation from the width perspective. In specific target sites or regions, the method herein adopts geophysical exploration technology which combines electromagnetic instruments, high density resistivity meters and ground penetrating radars in a step-by-step and targeted manner, can accurately position areas or points that are suspected to have soil contamination, arranges sapling points in a scientific manner, combines rapid site contamination pollution screening as well as drilling sampling, test and analysis, and establishes an entire set of soil pollution investigation procedures from the width perspective, the depth perspective and the specified point perspective. Themethod herein can rapidly and accurately position soil contamination, scientifically arrange sampling points, conducts soil contamination investigation that cover an entire region, and increases theprecision in estimating the contamination area.
Owner:SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
Pre-embedded bag for multi-stage remediation of uranium-contaminated soil and use method thereof
ActiveCN110369481AHigh organic contentImprove fertilityContaminated soil reclamationOrganic fertilisersEngineeringContamination
The invention discloses a pre-embedded bag for multi-stage remediation of uranium-contaminated soil and a use method thereof, and belongs to the technical field of uranium-contaminated soil remediation. The pre-embedded bag for multi-stage remediation of uranium-contaminated soil can be pre-embedded by a soil cleaning and per-embedding manner, on the one hand, uranyl ions in the soil are transferred through a strict water-conducting network, a large amount of uranyl ions are actively and quickly collected into the pre-embedded bag to facilitate fixed-point remediation, on the other hand, a special soil remediation agent is used to greatly improve adsorption and accumulation for uranyl ions, agglomeration of uranyl ions is improved based on nano porous properties, and uranyl ions are filledin micro-pores to avoid contamination and diffusion. After the active primary remediation, uranyl ions in the uranium-contaminated soil are reduced to a certain value, then natural secondary remediation, namely heavy metal uranium enrichment plant remediation, is followed, the soil organic matter content and soil fertility are increased, a soil surface structure is improved and maintained, and asolid foundation for direct use of the soil after uranium pollution remediation is laid.
Owner:绍兴市上虞区武汉理工大学高等研究院
Vertical flexible barrier system for remediation of ecological environment
InactiveCN102367673APrevent spread of pollutionEffective protectionArtificial islandsProtective foundationGeomembraneEcological environment
The invention relates to a vertical flexible barrier system for remediation of an ecological environment, the vertical flexible barrier system is a water-proof HDPE (high-density polyethylene) geomembrane wall, and the vertical flexible barrier system penetrates through an underground water layer below pollutants and is driven into a water-proof layer. By arranging the vertical flexible anti-seepage membrane wall, a pollution region can be thoroughly isolated from outside, the spread of pollution can be avoided, and surrounding soil and underground water can be effectively protected; and furthermore, the structure is simple and the construction cost is low.
Owner:BEIJING GEOENVIRON ENG & TECH
Preparation method of cure-peelable high-viscosity radioactive aerosol inhibitor
ActiveCN105869691AHigh viscosityRapid inhibitionRadioactive decontaminationFunctional monomerSolvent
The invention discloses a preparation method of cure-peelable high-viscosity radioactive aerosol inhibitor, comprising: using polyethylene alcohol as matrix, acrylamide as a modifying functional monomer and water as a solvent, preparing a polymer solution by using free radical polymerizing mechanism, and adding gelatin and a surfactant to modify the solution. The radioactive aerosol inhibitor of the invention is made by subjecting the matrix polyethylene alcohol and the monomer acrylamide to free radical solution polymerization grafting and copolymerization, the prepared inhibitor has cross-linked mesh structure and high viscosity, the inhibitor is sprayed and atomized to capture dust particles and then settles on the surface of an object, aerosol dust particles are wrapped in along with volatilization of a solvent and can cure into a peelable continuous film, and the film can be removed and recycled by mechanical means. The radioactive aerosol inhibitor is applicable to inhibiting and removing radioactive aerosols possibly produced in nuclear facility decommissioning or nuclear accidents, thereby preventing radioactive contamination spread and protecting safety of operators and environment.
Owner:SOUTHWEAT UNIV OF SCI & TECH
Water body pollution treatment method and equipment
InactiveCN106830353ARapid responseAvoid lasting damageWater treatment parameter controlMeasurement devicesDiffusionEnvironmental engineering
The invention relates to a water body pollution treatment method and equipment. The method is used for water body pollution treatment equipment. The method comprises the following steps of: moving to a target position according to an appointed movement track; detecting water body environmental data in the target position; acquiring a pollution repair policy and / or a sample collecting policy corresponding to a pollution diagnosing result determined at least according to the water body environmental data; and executing a pollution repair operation and / or a sample collecting operation in the target position according to the pollution repair policy and / or the sample collecting policy. The method and equipment disclosed by the invention can realize real-time monitoring and in-situ fast repair of the environmental pollution condition at the same time, so that pollution diffusion and sustained damage on the environment are avoided; meanwhile, samples can be directly collected in a polluted water domain so as to further research the pollutants and improve the repair policy. The method and equipment can fast respond to emergent water body environmental pollution events, and also can perform pollution detection and repair on the polluted water domain where workers are unlikely to enter.
Owner:ELION ECOLOGICAL RESTORATION
RPA-LED visualized reagent kit for detecting porcine epidemic diarrhea viruses
InactiveCN109609695AHigh sensitivityImprove featuresMicrobiological testing/measurementMicroorganism based processesEpidemic diarrheaNucleic acid detection
The invention relates to the field of virus detection, in particular to a RPA-LED visualized reagent kit for detecting porcine epidemic diarrhea viruses. The invention provides a recombinase and polymerase isothermal amplification primer set for detecting the porcine epidemic diarrhea viruses. The reagent kit comprises an upstream primer, a downstream primer and a probe, of which the sequences areshown as SEQ ID NO: 1-3. The invention further provides a reverse transcription recombinase polymerase isothermal amplification reagent for detecting the porcine epidemic diarrhea viruses. The reverse transcription recombinase polymerase isothermal amplification reagent comprises recombinase polymerase, dNTPs and the primer set. In addition, the invention provides a reverse transcription recombinase polymerase isothermal amplification reagent kit for detecting the porcine epidemic diarrhea viruses, and the reagent kit comprises the primer set or reagent. The detection reagent kit is high in specificity and high in sensitivity, results are easy to observe, complex equipment is not needed, and portable on-the-site quick nucleic acid detection of the porcine epidemic diarrhea viruses can bereally realized.
Owner:SOUTH CHINA AGRI UNIV
Computer case glass processing device with protection function
InactiveCN112817390AWith antistatic functionRolling is successfully realizedEdge grinding machinesGrinding drivesEngineeringMachining process
The computer case glass processing device with the protection function comprises a working platform, positioning frames, a processing plate and an anti-static processing plate; the positioning frames are fixed to the four corners of the top of the working platform, a cross rod is welded to the top of a telescopic column, a sliding groove is formed in the cross rod, a machining plate is slidably connected into the sliding groove, a cleaning box is fixed to the top of the machining plate, an anti-static machining plate is fixed to the bottom of the machining plate, a stretching frame is fixed to the back face of the working platform, a set of parallel clamps are installed at the top of the working platform, and the clamps are located on one side of the positioning frame. A series of elements are arranged, the device can be assisted in achieving longitudinal and transverse double-axis positioning in the machining process, synchronous cutting and grinding operation can be conducted on raw glass sheets, the machining efficiency of the device is improved, and the raw glass sheets can be subjected to antistatic film attaching machining, so that the invention has the antistatic function, and the use safety of the computer case is guaranteed.
Owner:东莞市信恒智能装备科技有限公司
Composite semi-conductor integrated circuit with three-dimensional element
InactiveCN103208472ASmall sizeReduce attenuationSemiconductor/solid-state device detailsSolid-state devicesIntegrated circuitWire bonding
The invention relates to a composite semi-conductor integrated circuit with a three-dimensional element. In the composite semi-conductor integrated circuit, a welding pad or an inductor is arranged above an electronic element in a three-dimensional mode. The thickness of a dielectric layer inserted between the welding pad or the inductor and the electronic element ranges from 10 microns to 30 microns, so that influence on the performance of the element caused by the structure is effectively reduced. A protective layer can be coated on the electronic element to prevent pollution from metal materials making the welding pad or the inductor, and therefore, relatively cheap copper can be used for making the welding pad and the inductor. The three-dimensional welding pad can be applied to a wire bonding technology or a lug bonding technology.
Owner:WIN SEMICON
Vegetation recovery method for extremely acidified mine soil
PendingCN111527966AImprove abilitiesGrow fastFlowers cultivationFabaceae cultivationRevegetationPrimary succession
The invention provides a vegetation recovery method for extremely acidified mine soil, and belongs to the technical field of vegetation recovery. The method follows a primary succession rule; plant configuration is performed in a layered and staged manner; in the first stage, primary succession started in a primary bare area is simulated, acid-resistant and heavy-metal-resistant plants are taken as main plants, and multiple plants such as trees, shrubs and grasses are subjected to group configuration; and in the second stage, tolerant plants are transited to natural succession through the compensation effect of biodiversity, and a near-natural plant community independent of the tolerant plants is constructed. According to the method, a stable three-dimensional vegetation ecological systemcan be established on the extremely acidified mine soil in a short time, soil acidification and re-acidification are effectively controlled, and the long-term stability of the vegetation system is achieved. The method is easy to operate, rapid in vegetation reconstruction, high in coverage degree, not prone to degradation, good in acidification control effect and suitable for large-area application and popularization.
Owner:SHAOGUAN TAOLIN GREEN TECH
Clean glass column circular head grinding device
ActiveCN105834886APrevent spread of pollutionGuaranteed cleanlinessGrinding carriagesLapping machinesReciprocating motionEngineering
The invention discloses a clean glass column circular head grinding device. The device comprises a frame; the frame is correspondingly provided with a fixing module and a grinding module; a driving module for driving the fixing module to perform a reciprocating motion is arranged in the frame; the grinding module includes a groove formed in the frame; a through groove is formed in the center of the groove; a bearing is arranged in the through groove, and is coaxially provided with a vertical rotating shaft; the rotating shaft is coaxially provided with a rotating disc; the rotating disc is arranged at the upper part of a bearing; a fixed disc is arranged at the upper part of the rotating disc; a grinding wheel is horizontally arranged at the top end of the rotating shaft; a first motor is coaxially arranged at the lower part of the rotating shaft; two circles of arc grooves are downwards formed in the bottom of the groove; the arc grooves are arranged at equal intervals; an annular pipe is arranged at the lower parts of the arc grooves in the frame; a collecting box is arranged at the lower part of the annular pipe; a negative-pressure fan is arranged at the bottoms of the arc grooves; and the negative-pressure fan is arranged in the annular pipe. The clean glass column circular head grinding device has such advantages as simple structure, convenience for use and low cost.
Owner:湛江市百德玻璃制品有限公司
Unsymmetrical dimethylhydrazine decontamination apparatus and unsymmetrical dimethylhydrazine decontamination method
ActiveCN106582255ASoft powderControl spillsDispersed particle separationAtmospheric pressureUnsymmetrical dimethylhydrazine
The invention discloses an unsymmetrical dimethylhydrazine decontamination apparatus and an unsymmetrical dimethylhydrazine decontamination method. The apparatus comprises a powdery decontaminant storage tank and a decontaminant injection system, the decontaminant injection system is connected with the powdery decontaminant storage tank, the injection system comprises a pneumatic powder conveying device and a gas source device, one end of the pneumatic powder conveying device is connected with the material conveying opening of the powdery decontaminant storage tank, and the other end of the pneumatic powder conveying device is connected with the gas source device through a gas conveying pipeline. The gas source device and the powder conveying pump are used to inject an unsymmetrical dimethylhydrazine decontaminant in order to meet application of the powdery decontaminant and realize soft powder conveying of the pneumatic powder conveying device and increase of the decontamination efficiency; and gas pressure used as a power source is suitable for various working conditions, and overcomes the disadvantages of unable use of a liquid decontaminant in environment with the temperature being less than a freezing point in the prior art, surrounding environment pollution easily caused by pollutant flowing around in the decontamination process, enlarged pollution area, and difficulty in decontamination of charged environment and precious instrument environment.
Owner:BEIJING INST OF AEROSPACE TESTING TECH +1
Contamination treatment for soil
InactiveUS20140321915A1Avoid spreadingAvoid recontaminationContaminated soil reclamationOxygenContamination
Underground contamination can be treated with soil amended with oxygen gettering material. The treated soil can act as a reactive medium, creating a favorable environment to remove the contamination, such as breaking down the contamination into less harmful or harmless substances.
Owner:RETERRO
Chip back side drape tin eutectic technology and loading method thereof
InactiveCN102593010AOvercome size limitationsAvoid torsional driftSemiconductor/solid-state device manufacturingTinningAlloy
The invention relates to a chip back side drape tin eutectic technology and a loading method thereof. The method comprises the following steps: step (1), carrying out backside silver or backside gold processing on a chip back side; step (2), carrying out tinning or tin alloy work on a backside silver surface or a backside gold surface of a chip which is subjected to the backside silver or backside gold processing in the step (1); step (3), cutting the chip whose backside silver surface or backside gold surface is subjected to the tinning or tin alloy work in the step (2); step (4), employing eutectic technology to install the chip which is cut in the step (3) to a basic island to complete loading. According to the chip back side drape tin eutectic technology and the loading method, there is no requirement to chip dimension, after the chip back side is coated with a layer of tin or tin alloy, since the thickness of the tin or tin alloy can be controlled, the thickness of the tin or tin alloy can effectively absorb different stresses between the chip and the basic island, and lamination and rupture problems of a traditional eutectic chip are solved.
Owner:CHANGJIANG ELECTRONICS TECH CHUZHOU
Sea surface oil stain collection and recovery integrated device
ActiveCN109339017APrevent deep contaminationEasy to handleWater cleaningWaterborne vesselsFiltrationEngineering
The invention provides a sea surface oil stain collection and recovery integrated device. The whole device is crescent, and achieves an effect of an oil surrounding fence to surround the sea surface oil stains from the end part; a mixture collecting port is formed in a crescent cabin body; oil-water mixtures are quickly absorbed in the device through an electric pump in the mixture collecting port; through a separation effect of a centrifuge, the oil stains are collected into an oil tank by an oil pipeline at the upper part of the device, and water is leaded out by a water pipeline at the lower part; and after multi-layer filtration, clean seawater is directly drained into the sea.
Owner:DALIAN UNIV OF TECH
Underground water in-situ remediation system based on micro-nano bubbles and method thereof
InactiveCN107698107APromote reproductionImprove decomposition efficiencyWater treatment parameter controlWater treatment compoundsMicro nanoDecomposition
The invention discloses an underground water in-situ remediation system based on micro-nano bubbles and a method thereof and relates to the technical field of underground water remediation. The underground water in-situ remediation system comprises air inlet well devices and monitoring well devices, wherein each air inlet well device comprises an air inlet well, an intelligent control box and a nutrient box; each monitoring well device comprises a monitoring well; a micro-nano bubble aeration machine is arranged in the air inlet well; a water inlet and an air inlet are formed in one end of themicro-nano bubble aeration machine; an air outlet is formed in the other end of the micro-nano bubble aeration machine; a water quality monitoring module is arranged in the air inlet well; a plurality of air inlet well devices are respectively arranged at the upstream and the downstream of water flow in a water pollution region; and a plurality of monitoring well devices are arranged in the waterpollution region. The underground water in-situ remediation system disclosed by the invention has the advantages that real-time monitoring on quality of underground water is realized by virtue of theintelligent control box, the water quality monitoring module and a sewage quality monitoring module, specific decomposition treatment on different pollutants is realized, pollutant decomposition efficiency is improved, and specific treatment is carried out, so that influence on the original underground water environment is reduced.
Owner:安徽金联地矿科技有限公司
Making method of color filter and color filter
ActiveCN110488405APrevent spread of pollutionGuaranteed display effectOptical filtersPhotomechanical apparatusColor gelLight filter
The invention provides a making method of a color filter and the color filter. The method comprises a step of making a color barrier layer on a substrate and a step of making an inorganic blocking layer. In the step of making the color barrier layer, first color barriers, second color barriers and third color barriers are formed in turn, wherein the first color barriers, the second color barriersand the third color barriers are sequentially and repeatedly arranged along the surface of the substrate. In the step of making the inorganic blocking layer, a first inorganic blocking layer coveringthe first color barriers is formed after the formation of the first color barriers and before the formation of the second color barriers. By setting the inorganic blocking layer to separate differentcolor barriers, the diffusion pollution between different color barriers can be avoided, and the display effect can be guaranteed.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
Peculiar smell eliminating closestool
InactiveCN104631591ALow structural requirementsEasy dischargeLavatory sanitoryShortest distanceEngineering
The invention discloses a peculiar smell eliminating closestool which comprises a closestool body, a seat cushion, a support and a short-distance exhaust system close to the edge of a urinal of the closestool. The short-distance exhaust system comprises a miniature exhaust fan, an exhaust pipe and a control switch, wherein a through hole is formed in the support, the miniature exhaust fan is connected to the through hole, and the exhaust pipe is connected between the miniature exhaust fan and an outside exhaust duct. On the premise that wide-range modification is not conducted on the overall structure of an existing closestool, peculiar smell is directly discharged out along the edge of the urinal in a direct discharging mode, air pollution in a toilet is avoided, the whole exhaust process is reliable and effective, and the peculiar smell eliminating closestool is good in peculiar smell eliminating effect and powerful in functions and is suitable for direct installation and usage like an existing closestool.
Owner:JIAXING WEISIBO NETWORK TECH
Urban air quality monitoring management and pollution source determination method based on internet of things
InactiveCN109061065AComprehensive monitoring of air qualityObtain air quality status in timeMaterial analysisQuality dataGeolocation
The invention discloses an urban air quality monitoring management and pollution source determination method based on internet of things. The method comprises the following steps: acquiring air quality data collected by multiple air quality monitoring devices; acquiring a geographic positions located by multiple air quality monitoring devices and collection time; importing the geographic positionsand the collection time into a map model, and displaying the air quality data by using different identifiers. The urban city quality is comprehensively monitored through real-time monitoring management, the air quality condition of the corresponding geographic position can be timely acquired, and the acquired air quality data is imported through the map model, thereby directly displaying the distribution conditions of the air quality in various regions, and the person in charge can comprehensively and directly understand the air pollution condition of the region; a pollution source location can be determined according to the detailed data in the polluted region, the air pollution source is key-observed and timely processed, thereby preventing the air pollution source from continuously diffusing to pollute other regions.
Owner:天狼联盟材料科技研究(广东)有限公司
Phytoremediation method for cadmium-zinc compound contaminated soil
InactiveCN104785513AStrong absorption capacityImprove the transfer coefficientContaminated soil reclamationPlant rootsMonopotassium phosphate
The invention relates to a phytoremediation method for cadmium-zinc compound contaminated soil. The phytoremediation method comprises the following steps: weighting 1500 g of the contaminated soil, and putting into a plastic basin; adding a bio-organic fertilizer, urea, monopotassium phosphate and potassium sulphate into the contaminated soil, and applying a small amount of a calcium-magnesia phosphate fertilizer, so that the mass ratio of the main nutrient elements, namely nitrogen, phosphorus to potassium, is (4-2):(2-1):(3-1), the proportion of soil organic carbon is adjusted to be 3-5%, and the proportions of the main nutrient elements, namely nitrogen, phosphorus and potassium, are 1.5%, 1.0% and 0.05% respectively; transplanting mugwort seedlings with three seedlings every pot; regularly watering, shearing the upper parts of the mugwort along the soil surface three months later, collecting plant root samples, and conducting determination analysis on the content of cadmium in soil and all plant parts. The phytoremediation method is high in absorption capacity, high in concentration coefficient, high in transfer coefficient, capable of preventing pollutant dispersion and secondary pollution on underground water, safe and efficient.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
Ecological floating bed capable of cleaning floating garbage on river surface
ActiveCN112160300APrevent the spread of pollutionImprove governance effectWater cleaningTreatment using aerobic processesFishing netRiver pollution
The invention discloses an ecological floating bed capable of cleaning floating garbage on a river surface. The ecological floating bed comprises a floating bed carrier, a storage groove is formed inthe side wall of the floating bed carrier, an arc-shaped fishing net is connected into the storage groove in a sliding mode, a storage groove is formed in the inner bottom of the storage groove, a through groove is formed in the side wall of the floating bed carrier, a driving device for driving the arc-shaped fishing net to get in and out of the storage groove is installed in the through groove,a permanent magnet is embedded in the side wall of the arc-shaped fishing net, an iron block is embedded in the inner top of the storage groove, and the arc-shaped fishing net is connected with the driving device through a spring shaft. According to the ecological floating bed capable of cleaning the floating garbage on the river surface, when the arc-shaped fishing net moves back, the arc-shapedfishing net is rotated anticlockwise by 90 degrees through magnetic attraction force, the fished household garbage can fall into the storage groove under the action of gravity, and therefore a traditional ecological floating bed can have the effects of treating the garbage floating on the river surface, preventing pollution diffusion and improving the treatment effect of the ecological floating bed on river pollution.
Owner:南京洋程环境科技有限公司
Repair method of heavy metal polluted soil
InactiveCN107457255AAchieve insulation effectImprove pollution propertiesContaminated soil reclamationSoil scienceBran
The invention discloses a repair method of heavy metal polluted soil and belongs to the field of polluted soil governance. The repair method comprises the following steps of: paving a pipeline in the heavy metal polluted soil, performing aeration by using the pipeline, and conveying a liquid to the soil at 5-6L / min for 15-20min after aeration for 20-30min; after the liquid is conveyed, inserting carbonized stalks onto the surface of the heavy metal polluted soil, wherein the distance among the carbonized stalks is 10-15cm, spraying bran on the surface of the heavy metal polluted soil after the carbonized stalks are inserted for 10-15d, leaving the carbonized stalks for 2-3d, removing the carbonized stalk, and performing ploughing; planting scindapsus aureus on the surface of the ploughed heavy metal polluted soil, wherein the distance between two pieces of scindapsus aureus is 10-15cm and the planting time is 2-3 months, and paving cobblestones in a circle, the radius of which is 5-6cm, centered by scindapsus aureus; and performing aeration by using the pipeline, removing scindapsus aureus after planting, and then performing ploughing to repair the heavy metal polluted soil. The repair method disclosed by the invention has the beneficial effects that the repair method of heavy metal polluted soil disclosed by the invention is obvious in effect and worth being popularized and used.
Owner:常州欧利莱照明有限公司
A method for precise location and assessment of soil pollution based on geophysical detection technology
ActiveCN107544097BPrecise positioningArrange sampling points reasonablyGeological measurementsSoil scienceHigh density
Owner:SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
Small road sweeper
InactiveCN106192841APassability is strongPrevent the spread of pollutionRoad cleaningEngineeringRoad sweeper
The invention discloses a small road sweeper. The small road sweeper is characterized in that the sweeper comprises a sweeper body, a sweeping device and a garbage storing device. The sweeping device comprises disc-shaped sweeping heads and a suction unit, and the suction unit comprises an exhaust fan, an air guiding pipe and suction heads, wherein the suction heads are connected with the exhaust fan through the air guiding pipe and comprise the first suction head, the second suction head and the third suction head. Two motors rotating in opposite directions are arranged at the front end of the sweeper body, the disc-shaped sweeping heads are arranged on rotating shafts of the motors, the first suction head is arranged between the two disc-shaped sweeping heads, and the second suction head and the third suction head are arranged on the two sides of the sweeper body correspondingly. The garbage storing device is arranged on the sweeper body and comprises an inner box body and an outer box body. The small road sweeper is high in trafficability, the requirements of cleaning on various road conditions can be met through the sweeping device located on the head and the lateral sides of the sweeper, and meanwhile, the small road sweeper can be converted into a watering cart as required.
Owner:ANHI SHENGYUN HEAVY MACHINERY CO LTD
Eutectic process for coating tin on substrate and chip mounting method thereof
InactiveCN102623364AUniform thicknessLow costSemiconductor/solid-state device manufacturingElectroplatingBall bonding
The invention relates to a eutectic process for coating tin on a substrate and a chip mounting method thereof. The chip mounting method includes the following process steps: step one, utilizing an existing process to manufacture a metal portion of a lead frame; step two, performing ball bonding area plating on the lead frame manufactured in the step one; step three, coating tin or tin alloy at the chip mounting position of the lead frame which finishes ball bonding area plating in the step two; and step four, performing eutectic chip mounting on the lead frame which finishes coating operation, and enabling the chip mounting position of the frame to be combined together with a back gold chip and a back silver chip. The eutectic process for coating tin on the substrate and the chip mounting method of the eutectic process have no requirements for the chip size. After a layer of tin or tin alloy is coated on the substrate, due to the fact that the thickness of the tin or the tin alloy can be controlled, the thickness of the tin or the tin alloy layer can effectively absorb different stress between the chip and the substrate, and problems of delamination and cracking of a traditional eutectic chip are solved.
Owner:CHANGJIANG ELECTRONICS TECH CHUZHOU
Medical garbage can facilitating garbage bag fixation and capable of automatically conducting packaging and disinfecting
InactiveCN113353514ABlock deliveryGood sealingRefuse receptaclesRefuse cleaningRefuse collectionMedical waste
The invention discloses a medical garbage can facilitating garbage bag fixation and capable of automatically conducting packaging and disinfecting, and relates to the technical field of medical waste treatment. The medical garbage can solves the problem that germs in garbage bags are likely to fly away in the process that medical garbage needs to be manually packaged and collected when an existing medical garbage can is used. The medical garbage can comprises a medical garbage can body, a garbage bag fixing assembly, a garbage tray and a garbage rotating assembly. The garbage bag fixing assembly is arranged on the upper portion of the inner side of the medical garbage can body. The garbage tray is rotationally connected to the bottom of the inner side of the medical garbage can body. The garbage rotating assembly is arranged inside the bottom of the medical garbage can body, and the garbage rotating assembly drives the garbage tray to rotate. A series of actions of fixing, automatic disinfection, automatic closing, automatic pressing, automatic rotating, automatic sealing and the like of the garbage bags are achieved, manual operation is replaced, pathogenic bacteria are effectively prevented from flying away in the garbage collecting process, and virus diffusion is reduced.
Owner:SECOND AFFILIATED HOSPITAL OF XIAN MEDICAL UNIV
Using ryegrass to assist tailings restoration and the method of planting ryegrass on the repaired ground
ActiveCN104718934BSimple structureImprove regenerative abilityHops/wine cultivationContaminated soil reclamationEcological environmentGreen manure
A method for assisting in tailings restoration through ryegrass and planting the ryegrass on restored land includes the following steps that tailings is turned over by 18-22 cm and leveled; fresh ryegrass growing to the florescence are shorn into broken segments being 3-5 cm long so that ryegrass green manure can be formed; the ryegrass green manure is spread on the tailings land which is turned over and leveled, and the ryegrass green manure and the tailings are fully mixed evenly so that smooth planting land can be formed; ryegrass seeds are sown on the planting land. The planting method includes the steps that the seeds are processed and sown; the ryegrass is harvested regularly while stubble is left and the harvested ryegrass is returned to the field, 3-5 years after the ryegrass is planted, the whole ryegrass plants are recycled, the land is turned over, then, ridges are reconstructed for planting, and the plating method is repeated in this way. Due to the virtuous cycle that the planted ryegrass is returned to the field, the ecological environment can be continuously improved, and the landscape phenomenon of the tailings can be improved. The method has the advantages that operability is high and ecologically friendly and restoration cost is substantially reduced and the method is an important measure for ecological restoration of the tailings.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
A clean glass column round head grinding device
ActiveCN105834886BPrevent spread of pollutionGuaranteed cleanlinessGrinding carriagesLapping machinesDevice typeReciprocating motion
The invention discloses a clean glass column circular head grinding device. The device comprises a frame; the frame is correspondingly provided with a fixing module and a grinding module; a driving module for driving the fixing module to perform a reciprocating motion is arranged in the frame; the grinding module includes a groove formed in the frame; a through groove is formed in the center of the groove; a bearing is arranged in the through groove, and is coaxially provided with a vertical rotating shaft; the rotating shaft is coaxially provided with a rotating disc; the rotating disc is arranged at the upper part of a bearing; a fixed disc is arranged at the upper part of the rotating disc; a grinding wheel is horizontally arranged at the top end of the rotating shaft; a first motor is coaxially arranged at the lower part of the rotating shaft; two circles of arc grooves are downwards formed in the bottom of the groove; the arc grooves are arranged at equal intervals; an annular pipe is arranged at the lower parts of the arc grooves in the frame; a collecting box is arranged at the lower part of the annular pipe; a negative-pressure fan is arranged at the bottoms of the arc grooves; and the negative-pressure fan is arranged in the annular pipe. The clean glass column circular head grinding device has such advantages as simple structure, convenience for use and low cost.
Owner:湛江市百德玻璃制品有限公司
A kind of automatic treatment device for waste liquid of oil chemical test
ActiveCN112723618BTimely and efficient automatic recyclingSolve the problem of difficult storageWater treatment parameter controlSpecific water treatment objectivesTap waterLiquid storage tank
The invention discloses an automatic treatment device for oily test waste liquid. The automatic treatment device includes a liquid storage tank, an ozone disinfection pump, an oil filter tank, a secondary waste liquid treatment system, an iron carbon tank, a tertiary waste liquid treatment system and a pH sensor; the water inlet of the tap water is connected with the water inlet of the liquid storage tank and the liquid inlet of the iron carbon tank respectively; the ozone disinfection pump is connected with the disinfection port; the liquid outlet of the liquid storage tank is connected with the liquid inlet of the oil filter tank; The liquid port is communicated with the secondary waste liquid treatment inlet; the secondary waste liquid treatment outlet is communicated with the iron carbon tank liquid inlet; the iron carbon tank liquid outlet is connected with the secondary waste liquid treatment inlet and the tertiary waste liquid treatment inlet respectively; The first-grade waste liquid treatment outlet is connected to the liquid inlet and the drain end of the iron carbon canister respectively through the pH sensor. In the embodiment of the present invention, the automatic processing device can automatically and efficiently process the oily test waste liquid generated in the process of electric power oil detection, without storing the oily test waste liquid, and can effectively avoid the oily test waste liquid. Pollution spreads.
Owner:广西电网有限责任公司桂林供电局
Energy plant ecological interception, purification and restoration system and method for copper-cadmium heavy metal polluted site
ActiveCN114798714AGive full play to the normal ecologyFully functionalContaminated soil reclamationFood chainSoil heavy metals
The invention discloses a copper-cadmium heavy metal polluted site energy plant ecological intercepting, purifying and repairing system which comprises an isolation wall body arranged on the periphery of a polluted site in a surrounding mode, a plurality of liquid passivator filling modules distributed in the polluted site and energy plants planted on the polluted site. The liquid passivator filling module is used for uniformly adding a liquid passivator into the soil of the polluted site, the energy plants are planted in the soil of the polluted site and are cultivated and managed, and after the energy plants grow to the mature period, the overground parts of the energy plants are harvested or the energy plants are integrally removed from the polluted soil. The invention further discloses a working method of the system. Normal ecological and economic functions of the polluted land are brought into full play, high-valued utilization of the heavy metal polluted land is achieved, energy plants are vigorously developed through the heavy metal polluted land, soil heavy metal pollution can be effectively remedied, the way that heavy metal enters a food chain can be cut off, and food safety is guaranteed.
Owner:HUBEI POLYTECHNIC UNIV +2
An automatic grinding manipulator
ActiveCN106826422BRealize automatic ejectionRealize automatic collectionGrinding carriagesGrinding drivesControl systemEngineering
The invention discloses an automatic polishing manipulator which is provided with composite structure of normal mechanism structures such as a single-rod air cylinder, a dual-rod air cylinder and a link-slider mechanism. The composite structure is in coordination with a sensor and a control system, so that soft connection of diamond workpiece relative to a grinding wheel can be achieved, bursting of the grinding wheel due to hard contact is avoided effectively, and potential safety hazards are omitted. The automatic polishing manipulator is provided with a movable workbench, a finished-product conveying belt, a finished-product collecting device and a counter, so that automatic operation from clamping to collecting of products can be realized, the conventional manual operation is replaced, counting error is avoided, processing efficiency is improved greatly, and labor cost is saved. The whole processing is carried out in an air-tight environment, diffusion of dust generated during polishing can be avoided effectively and pollution to environment is reduced greatly.
Owner:BEIJING INST OF TECH ZHUHAI CAMPUS
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